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Railways PYQCBT 2 2017

RRB NTPC · Question 24

If p and q are in the ratio 4 : 3 and their LCM is 36, p + q = ?

  1. 18

  2. 21

  3. 24

  4. 12

Show answer & explanation

Answer: (B) 21

Explanation

Let p = 4k and q = 3k. Their LCM is 12k = 36, so k = 3. Then p = 12, q = 9 and p + q = 21.